US3328306A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Foam inhibiting composition and foam inhibited phosphating process
Assignee: Lubrizol Corp
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Filing: 1965-10-04
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Granted: 1967-06-27
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Expires: 1985-10-04
Abstract
No abstract record available.
Inventors
- 👤 Jean J Ellis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 05:17
CPC Classifications
C; C23; C23G; C23G1/00; C23G1/14; C23G1/19; B; B01; B01D; B01D19/00; B01D19/02; B01D19/04; B01D19/0404; C23C; C23C22/00; C23C22/78
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
79 words
IN THE PROCESS FOR PREPARING A FERROUS SURFACE FOR PHOSPHATING, WHEREIN SAID SURFACE IS CLEANED BY THE TREATMENT THEREOF WITH A DILUTE AQUEOUS CLEANING SOLUTION HAVING THE TENDENCY TO FOAM AND CONSISTING ESSENTIALLY OF A CLEANING SUBSTANCE SELECTED FROM THE CLASS CONSISTING OF SODIUM PHOSPHATES, POTASSIUM PHOSPHATES, SODIUM SILICATES, AND POTASSIUM SILICATES, THE IMPROVEMENT COMPRISING REDUCING THE FOAMING TENDENCY OF SAID SOLUTION BY INCORPORATING THEREIN FROM ABOUT 0.001% TO 1% OF A WATER-SOLUBLE OXYALKYLENE ALCOHOL HAVING THE STRUCTURAL FORMULA
Claim 2
Dependent Claim
79 words
IN THE PROCESS FOR PREPARING A FERROUS SURFACE FOR PHOSPHATING, WHEREIN SAID SURFACE IS CLEANED BY THE TREATMENT THEREOF WITH A DILUTE AQUEOUS CLEANING SOLUTION HAVING THE TENDENCY TO FOAM AND CONSISTING ESSENTIALLY OF A CLEANING SUBSTANCE SELECTED FROM THE CLASS CONSISTING OF SODIUM PHOSPHATES, POTASSIUM PHOSPHATES, SODIUM SILICATES, AND POTASSIUM SILICATES, THE IMPROVEMENT COMPRISING REDUCING THE FOAMING TENDENCY OF SAID SOLUTION BY INCORPORATING THEREIN FROM ABOUT 0.001% TO 1% OF A WATER-SOLUBLE OXYALKYLENE ALCOHOL HAVING THE STRUCTURAL FORMULA
References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-06-26 | 1970-12-26 | 1971-06-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-06-26 | 1974-12-26 | 1975-06-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-06-26 | 1978-12-26 | 1979-06-27 | $7700.00 | Window Closed / Lapsed |